/*
 * Copyright (C) 2005 - 2013 MaNGOS <http://www.getmangos.com/>
 *
 * Copyright (C) 2008 - 2013 Trinity <http://www.trinitycore.org/>
 *
 * Copyright (C) 2006 - 2013 ScriptDev2 <http://www.scriptdev2.com/>
 *
 * Copyright (C) 2010 - 2013 ProjectSkyfire <http://www.projectskyfire.org/>
 *
 * Copyright (C) 2011 - 2013 ArkCORE <http://www.arkania.net/>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "ScriptPCH.h"
#include "naxxramas.h"

#define SPELL_BOMBARD_SLIME         28280

#define SPELL_POISON_CLOUD          28240
#define SPELL_MUTATING_INJECTION    28169
#define SPELL_SLIME_SPRAY           RAID_MODE(28157, 54364)
#define SPELL_BERSERK               26662
#define SPELL_POISON_CLOUD_ADD      59116

#define EVENT_BERSERK   1
#define EVENT_CLOUD     2
#define EVENT_INJECT    3
#define EVENT_SPRAY     4

#define MOB_FALLOUT_SLIME   16290

class boss_grobbulus: public CreatureScript {
public:
    boss_grobbulus() :
            CreatureScript("boss_grobbulus") {
    }

    CreatureAI* GetAI(Creature* pCreature) const {
        return new boss_grobbulusAI(pCreature);
    }

    struct boss_grobbulusAI: public BossAI {
        boss_grobbulusAI(Creature *c) :
                BossAI(c, BOSS_GROBBULUS) {
            me->ApplySpellImmune(0, IMMUNITY_ID, SPELL_POISON_CLOUD_ADD, true);
            me->ApplySpellImmune(0, IMMUNITY_EFFECT, SPELL_EFFECT_KNOCK_BACK,
                    true);
            me->ApplySpellImmune(0, IMMUNITY_MECHANIC, MECHANIC_GRIP, true);
        }

        void EnterCombat(Unit * /*who*/) {
            _EnterCombat();
            events.ScheduleEvent(EVENT_CLOUD, 15000);
            events.ScheduleEvent(EVENT_INJECT, 20000);
            events.ScheduleEvent(EVENT_SPRAY, 15000 + rand() % 15000); //not sure
            events.ScheduleEvent(EVENT_BERSERK, 12 * 60000);
        }

        void SpellHitTarget(Unit *pTarget, const SpellEntry *spell) {
            if (spell->Id == uint32(SPELL_SLIME_SPRAY)) {
                if (TempSummon *slime = me->SummonCreature(MOB_FALLOUT_SLIME, pTarget->GetPositionX(), pTarget->GetPositionY(), pTarget->GetPositionZ(), 0, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 0))
                    DoZoneInCombat(slime);
            }
        }

        void JustDied(Unit* /*killer*/) {
            _JustDied();
        }

        void UpdateAI(const uint32 diff) {
            if (!UpdateVictim())
                return;

            events.Update(diff);

            while (uint32 eventId = events.ExecuteEvent()) {
                switch (eventId) {
                case EVENT_CLOUD:
                    DoCastAOE(SPELL_POISON_CLOUD);
                    events.ScheduleEvent(EVENT_CLOUD, 15000);
                    return;
                case EVENT_BERSERK:
                    DoCastAOE(SPELL_BERSERK);
                    return;
                case EVENT_SPRAY:
                    DoCastAOE(SPELL_SLIME_SPRAY);
                    events.ScheduleEvent(EVENT_SPRAY, 15000 + rand() % 15000);
                    return;
                case EVENT_INJECT:
                    if (Unit *pTarget = SelectUnit(SELECT_TARGET_RANDOM, 1))
                        if (!pTarget->HasAura(SPELL_MUTATING_INJECTION))
                            DoCast(pTarget, SPELL_MUTATING_INJECTION);
                    events.ScheduleEvent(EVENT_INJECT,
                            8000 + uint32(120 * me->GetHealthPct()));
                    return;
                }
            }

            DoMeleeAttackIfReady();
        }
    };
};

class npc_grobbulus_poison_cloud: public CreatureScript {
public:
    npc_grobbulus_poison_cloud() :
            CreatureScript("npc_grobbulus_poison_cloud") {
    }

    CreatureAI* GetAI(Creature* pCreature) const {
        return new npc_grobbulus_poison_cloudAI(pCreature);
    }

    struct npc_grobbulus_poison_cloudAI: public Scripted_NoMovementAI {
        npc_grobbulus_poison_cloudAI(Creature* pCreature) :
                Scripted_NoMovementAI(pCreature) {
            Reset();
        }

        uint32 Cloud_Timer;

        void Reset() {
            Cloud_Timer = 1000;
            me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
        }

        void UpdateAI(const uint32 diff) {
            if (Cloud_Timer <= diff) {
                DoCast(me, SPELL_POISON_CLOUD_ADD);
                Cloud_Timer = 10000;
            } else
                Cloud_Timer -= diff;
        }
    };
};

void AddSC_boss_grobbulus() {
    new boss_grobbulus();
    new npc_grobbulus_poison_cloud();
}
